| Number of Mares Reported Bred to Thoroughbred Stallions in 2021 | |||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | |||||
| Stallion | Mares Bred | State | |||
| Take Charge Indy | 80 | KY | |||
| Take Charge Tapit | 10 | IN | |||
| Takeover Target | 31 | LA | |||
| Tale of Ekati | 24 | KY | |||
| Tale of the Cat | 2 | KY | |||
| Tale of Verve | 25 | KY | |||
| Talent Search | 8 | PA | |||
| Tales of the Wild | 1 | SD | |||
| Tamarando | 9 | CA | |||
| Tamarkuz | 31 | KY | |||
| Tap Fever | 1 | IL | |||
| Tapit | 110 | KY | |||
| Tapiture | 125 | KY | |||
| Taprize | 18 | IN | |||
| Tapwrit | 69 | KY | |||
| Tastemaker | 2 | WY | |||
| Taybo Nation | 1 | AL | |||
| Team Six | 2 | OH | |||
| Tekton | 7 | AR | |||
| Templar Knight | 4 | NY | |||
| Temple City | 61 | KY | |||
| Tencendur | 5 | NY | |||
| Terquito | 2 | VI | |||
| Teuflesberg | 4 | NY | |||
| Texas Chrome | 17 | AR | |||
| Texas Red | 19 | KY | |||
| Texas Ryano | 21 | CA | |||
| Texas Wildcatter | 2 | BC | |||
| The Big Beast | 41 | FL | |||
| The Daddy | 4 | LA | |||
| The Factor | 135 | KY | |||
| The Hunk | 9 | TX | |||
| The Player | 5 | KY | |||
| The Visualiser | 6 | OK | |||
| The Waving Man | 3 | TX | |||
| The Way Home | 2 | PA | |||
| Thousand Words | 184 | KY | |||
| Three Hour Nap | 7 | IL | |||
| Tidal Volume | 6 | OH | |||
| Tiger of Wales | 2 | PR | |||
| Time Bandit | 2 | LA | |||
| Timeline | 31 | IA | |||
| Tiz Mischief | 13 | TX | |||
| Tiz Sardonic Joe | 1 | MI | |||
| Tiz Shea D | 28 | PR | |||
| Tiz the Law | 160 | KY | |||
| Tizzam | 4 | TX | |||
| To Teras | 5 | NM | |||
| Tobz Flash | 1 | MT | |||
| Toews On Ice | 10 | NM | |||
| Tom's d'Etat | 116 | KY | |||
| Tom's Tribute | 7 | CA | |||
| Tonalist | 54 | KY | |||
| Too Discreet | 2 | FL | |||
| Too Much Bling | 36 | TX | |||
| Tormenta Gato | 3 | KY | |||
| Tough It Up | 3 | OH | |||
| Tough Sunday | 7 | CA | |||
| Tour de Force | 15 | AB | |||
| Tourist | 17 | KY | |||
| Town Extension | 7 | NM | |||
| Train Rider Blues | 4 | NM | |||
| Trojan Nation | 8 | WY | |||
| True Sense | 5 | AB | |||
| Tunwoo | 10 | FL | |||
| Turbo Compressor | 15 | IN | |||
| Turbo S | 1 | OK | |||
| Tweet Kitten | 2 | ON | |||
| Twice as Bad | 8 | KS | |||
| Twin Engine | 4 | MI | |||
| Twinspired | 11 | OH | |||
| Twirling Candy | 175 | KY | |||
| Tyme for Willard | 4 | LA | |||
| Typhoon Slew | 4 | WY | |||